Batteries should be replaced once a year. Use 2 batteries (1.5
v, dc-type, AAA alkaline batteries). Never use old or re-
charged batteries together with new ones.
To replace batteries:
1. Slide the battery cover off from the back of the remote
controller. See Fig. 21.
2. Insert the 2 batteries in accordance with the markings
on the remote controller, so that the poles are correct
(+ and −).
RST
3. Press the button using an instrument screwdriver
or similar small, pointed tool.
4. Replace the cover securely.
It is time to replace the remote controller batteries when
the remote controller function becomes irregular, or the sys-
tem no longer responds to commands given close to the unit.
When shutting down the system for an extended period of
time, it is advisable to remove the batteries.
Consult distributor if any other equipment is turned on or
shows signs of disrupted operation if you use the wireless
remote controller , or if the system is turned on or shows signs
of disrupted operation when the remote controller of any other
equipment is used.
To Set the Current Time
TA1. Press the button (located on the back of the remote
controller; see Fig. 22) with an instrument screwdriver or
similar small, pointed tool, and the current time indica-
tion symbol flashes.
Note that the controller comes preset from the factory set for
6:00 a.m.
2. Set the current time with the hour and minute buttons on
the front of the remote controller (see Fig. 21) while the
current time indication is flashing. Note that a.m. and p.m.
are also indicated as the times are scrolled through.
TA
3. Press again. The flashing will stop and the current
time will be reset to the new setting.
To Remove and Clean or Replace Air Filters
Operating your system with dirty air filters may damage
the indoor unit and can also cause reduced cooling per-
formance, intermittent system operation, frost build-up
on the indoor coil, and blown fuses. Inspect and clean
or replace the air filters monthly.
TO REMOVE AIR FILTERS
1. Open fan coil unit front panel (lift). See Fig. 23.
2. Pull the filters down to remove.
TO CLEAN OR REPLACE FILTERS — Filters should be
vacuumed and washed with warm water (see Fig. 23). Shake
filter to remove any excess water, dry thoroughly, and re-
place by sliding filter behind front grille until filter snaps in
place.
If the filter has begun to break down or is torn, it needs to
be replaced. Replacement filters are available through your
Carrier distributor.
To Clean Indoor Unit Front Panel — If the front
panel of the unit becomes dirty or smudged, wipe the out-
side of the front panel with a soft dry cloth. If necessary, use
amildliquiddetergentandwipeoffcarefullywithadrycloth.
When cleaning the front panel, NEVER use water
hotter than 105 F, and DO NOT pour water onto the fan
coil unit. Do not use abrasive or petroleum-based clean-
ers — damage to unit appearance will result.
To Clean Indoor Coil — To clean the coil, remove in-
door unit front panel, and vacuum the coil fins. Use care not
to bend or damage fins.
REMOVE COVER INSERT NEW BATTERIES PRESS RST
NOTE: Be sure to insert new batteries correctly (as shown).
Fig. 21 — Installing or Replacing Batteries
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